Rumer Willis Shows Off Tiny Waist and Super-Curvy Booty on 2015 CMT Music Awards Red Carpet!

Dancing With the Stars champ flaunts that hot bod in a strapless white dress

Getting in shape for Dancing With the Stars was the lifestyle that keeps on giving!

Season 20 winner Rumer Willis was a vision in a sexy white strapless dress by House of CB at the 2015 CMT Music Awards tonight in Nashville.

The fitted but not bandage-tight frock showed off her tiny waist, super-fit arms, her toned legs and—whoa, Rumer!—her healthy round booty!

The singer and eldest daughter of Bruce Willis and Demi Moore has been busy enjoying the spoils of added DWTS fame, jetting all over doing press and making command appearances at events such as this country-music video kudosfest.

And as Rumer noted on Instagram while snapping a selfie en route to the main event at Bridgestone Arena, there will be a DWTS reunion tonight—Erin Andrews is co-hosting and fellow contestant Noah Galloway will be in attendance as well.

Have fun tonight, y'all!

#cmtawards bound....I'm so excited to see @noahgallowayathlete and @erinandrews #dwtsreunion

A photo posted by Rumer Willis (@ruelarue) on Jun 10, 2015 at 2:44pm PDT